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C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
C01F13/00—Compounds of radium
FR467330D1913-09-171914-01-15Procédé pour le traitement des minerais et produits intermédiaires renfermant du radium et du mésothorium
ExpiredFR467330A
(fr)